[Hakkai's eyebrows quirk up, and he drops his gaze from Goku's for a moment as the corner of his mouth turns up as well.

Sparring with Goku -- well, yes. That'd be interesting, of course.

And it's also weirdly heartwarming to have an offer of renewed friendship made so easily. Although from Goku he shouldn't have expected anything else.]

Yes, I think I'd like to do that. I'd be happy to help you with your shinki skills, too, if you'd like. I remember a thing or two.